用于汽车轻量化领域的碳纤维增强尼龙66复合材料的制备与研究
Preparation and Research of Carbon Fiber Reinforced Nylon 66 Composites for Automotive Light Weighting
王峰 1张家辉 1孙文革 1高素静 2程莉 3雷皓3
作者信息
- 1. 新疆职业大学智慧交通学院,新疆乌鲁木齐 830000
- 2. 巴州红旗高级技工学校,新疆库尔勒 841000
- 3. 新疆职业大学智能制造学院,新疆乌鲁木齐 830000
- 折叠
摘要
为了改善尼龙66(PA66)的力学性能以及热稳定性,使其在汽车轻量化领域应用更加广泛,在PA66基体中掺杂5%～20%的碳纤维(CF).结果表明:相比未改性的PA66材料,掺杂15%CF的PA66复合材料具有较好的综合性能.PA66/15%CF的拉伸强度为180 MPa,提升了177%;弹性模量为19 867 MPa,提高7.1倍;弯曲强度为262 MPa,提升212%;弯曲模量为15 867 MPa,提高6.4倍.PA66/15%CF的冲击强度为12.7 kJ/m2,提升49.4%.PA66/15%CF复合材料的质量保留率为22.8%,材料的热稳定性显著提高.研究表明,经CF改性增强的PA66复合材料具有用于汽车轻量化领域的潜力,以15%的掺杂量较好.
Abstract
In order to improve the mechanical properties and thermal stability of nylon 66(PA66)and make it widely used in the field of automotive lightweight,5%～20% carbon fiber(CF)was doped in PA66 matrix.The results show that the PA66 composite doped with 15% CF has better comprehensive properties than the unmodified PA66 material.The universal testing machine test shows that the tensile strength of PA66/15% CF is 180 MPa,increased by 177%,and the elastic modulus is 19 867 MPa,increased by 7.1 times.The bending strength is 262 MPa,which is increased by 212%,and the bending modulus is 15 867 MPa,increased by 6.4 times.The impact strength of PA66/15% CF is 12.7 kJ/m2,which increases by 49.4% .The mass residual rate of PA66/15% CF composite is 22.8%,and the thermal stability of the material is significantly improved.The study indicates that CF-modified PA66 composites have the potential for use in the field of automotive light weighting,with a 15% doping amount being preferable.
关键词
尼龙66/碳纤维/力学性能/热稳定性Key words
PA66/Carbon fiber/Mechanical properties/Thermal stability引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据